Isaac niskern



v(No Model.)

I. NISKERN.

' HOSE BRIDGE.

No. 546,387. Patente d Sept. 17, 1895.

l lllln ESE ihvrrno STATES nrnriir @rrics.

ISAAC NISKERN', OF MILYVAUKEE, \VISCONSIN, ASSIGNOR OF ONE-HALF TO JAMES B. HATCH, OF SAME PLACE.

HOSE-BRIDGE.

ESPECIFICATION forming part of Letters Patent No. 546,387, dated September 17, 1895.

Application filed February 18, 1895- Serial No. 638,840. (No model.)

To aZZ whom it may concern: shown results from a union of two eccentrics Beitknown tl1atI,ISAACNISKERN,acitizen E, extended in opposite directions and enof the United States, and a resident of Milgaging suitable openings in said brace memwaukee, in the county of Milwaukee and State bers. This double eccentric is herein shown 5 of iVisconsin, have invented certain new and as fitted on a squared stem F, having a Gllfill' useful Improvements in Hose-Bridges; and I lar end e loosely engaged by a lever G,carrydo hereby declare that the following is a full, ing a pivotal clutch-pawl ll, that engages clear, and exact description thereof. with a ratchet-wheel I, also fitted on the My invention has for its object to provide squared stem intermediate of the lever and 10 a simple and economical folding hose-bridge adjacent brace member. A washer f, held on for street-railways; and it consists in certain the stem against the lever by a screw g, and peculiarities of construction and combination another washer 7L, fitted to said stem against of parts hereinafter set forth, with reference the outside of the adjacent brace member, are to the accompanying drawings, and subseheld in place by a screw 2' to complete the quently claimed. joint.

In the drawings, Figure 1 represents a plan To hold the ratchet-wheel in position corre view of my hose-bridge; Fig. 2, an elevation spending to an adjustment of the eccentrics, of a portion thereof in view on line 2 2 of the and thereby prevent accidental contraction preceding figure and partly broken away; of the extended brace-joint, I employ aspring- 7o 20 Fig. 3, a detail section on line 3 3 of Figs. 4 controlled detent j, the latter being best and 5; Fig. 4, a similar View on line 4 4 of shown in Fig. 6. V Fig. 3; Fig. 5, a like view on line 5 5 of Fig. In Figs. 3 and 5 the brace-joint is shown at 3; Fig. 6, a detail elevation of a pawl-andits full extension,and while the lever isshown ratchet mechanism embodied in my invenvertical it will in practice he swung down out 2 5 tion; Fig. 7, a plan view of the bridge-rails of the way as soon as the extension of said inverted, and Fig. 8 a detail sectional view on joint is effected. line 8 8 of Fig. 1. The center blocks have their upper faces Referring by letter to the drawings, A rep beveled in opposite directions and provided resents each of a pair of center blocks that with studs 7r, that engage transverse recesses 50 are preferably cast-iron and have outside bot in the under sides of bridge-rails J, pivoted tom flanges b, that come over against trackin pairs to plates K, that seat in correspondrails B, upon which they are supported when ing recesses in said center blocks, this conmy bridge is positioned for use. A pair of struction and arrangement of parts being deears 0 extend inward from each block, and vised for the purpose of adapting the bridge 5 pivotally connected to these cars between the to straight track or curves; but any suitable same is a jaw 0, having a preferably serrated means may be employed to form hinge-joints lower end shaped to impinge against the adbetween the aforesaid center blocks and jacent track-rail. The eccentric heads at of bridge-rails in order that the latter may be jointed links I), also in pivotal connection folded together to economize space when the 40 with the block-ears, oppose the jaws O and bridge is not in use as Well as to facilitate the operate to clamp the same on the rails when handling of said bridge. It is also to be 0b the brace formed by said links is brought to served that the brace maybe folded together a horizontal position. because of its joint. Consequently the entire To compensate for possible deviations in bridge may be made very compact when not 5 excess of the standard gage of the railway in use.

the joint between the brace sections or links Each bridge-rail has its outer end prefer- D is made extensible, so that the necessary ably provided with a toe m, that comes outside clamping-pressure against the jaws C may be the corresponding track-rail to embed in the exerted at all times to maintain the center roadway, and a foot n depends from said mo 50 blocks on the rails. Any suitable extensible bridge-rail intermediate of the toe and center joint may be employed, but the one herein block to bear upon said track-rail and em tended inside against the same, as shown in Figs. 1 and 8, whereby the bridge is steadied in position.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. A hose-bridge comprising center-blocks having clamp-jaws that come inside of track-r rails when the blocks are in place thereon, a jointed brace connected at its extremities to the blocks to exert pressure against the jaws when extended, and bridge-rails joined to said blocks.

2. A hose-bridge comprising center-blocks having clamp-jaws that come inside of trackrails when the blocks are in place thereon, a brace connected at its extremities to the blocks to bear against the jaws and provided with an intermediate extensible joint, together with bridge-rails joined to said blocks.

3. A hose-bridge comprising center-blocks having clamp-jaws that come inside of trackrails when the blocks are in place thereon, a jointed brace connecting the blocks and exerti've at its extremities against the jaws, together with bridge rails pivotally connected to said blocks and having transverse recesses engaging studs on the same.

4. A hose-bridge comprising center-blocks having clamp-jaws that come inside of trackrails when the blocks are in place thereon, brace-sections connected to the blocks to exert pressure against the jaws,a double-eccentric engaging the brace-members to form an extensible joint, suitable means for adjusting the eccentric, and bridge-rails joined to said blocks.

5. A hose-bridge comprising center-blocks having clamp-jaws that come inside of trackrails when the blocks are in place thereon,

brace-sections connected to the blocks to exert pressure against the jaws, a double eccentrio engaging the brace-members to form an extensible joint, a squared stem fitting the eccentric, a ratchet-wheel fitted on the stem to turn therewith, a lever loose on said stem and provided with a clutch-pawl engageable i its extremities against the jaws, bridge-rails joined to said blocks,a toe at the outer end of each bridge-rail arranged to come on one side of a track-rail, and a foot depending from said bridge-rail intermediate of the toe and center-block to bear upon said track-rail and extend against the other side of the same.

7. A hose-bridge comprising centenblocks having recessed upper faces and clamp-jaws, the latter being arranged to come inside of track-rails when the blocks are in place thereon, a jointed brace connecting the blocks and exertive at its extremities against the jaws, plates engaging the block-recesses, bridgerails pivoted to the plates, and studs on said blocks engageable with openings in the bridgerails.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of \Viscousin, in the presence of two witnesses.

ISAAC NISKERN. iVitnesses:

N. E. OLIPHANT, HENRY DANKERT. 

